Remove unused SqlQueries samples (#4931)

Author: roji

entity-framework/core/querying/sql-queries.md

@@ -9,9 +9,6 @@ uid: core/querying/sql-queries
 
 Entity Framework Core allows you to drop down to SQL queries when working with a relational database. SQL queries are useful if the query you want can't be expressed using LINQ, or if a LINQ query causes EF to generate inefficient SQL. SQL queries can return regular entity types or [keyless entity types](xref:core/modeling/keyless-entity-types) that are part of your model.
 
-> [!TIP]
-> You can view this article's [sample](https://github.com/dotnet/EntityFramework.Docs/tree/main/samples/core/Querying/SqlQueries) on GitHub.
-
 ## Basic SQL queries
 
 You can use <xref:Microsoft.EntityFrameworkCore.RelationalQueryableExtensions.FromSql*> to begin a LINQ query based on a SQL query:

samples/core/Miscellaneous/ConfiguringDbContext/WithContextFactory/MyController.cs

@@ -3,6 +3,8 @@
 
 namespace WithContextFactory;
 
+#pragma warning disable CS1998 // This async method lacks 'await' operators and will run synchronously.
+
 public class MyController
 {
     #region Construct

samples/core/Querying/SqlQueries/Blog.cs

@@ -51,8 +51,6 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ClientEvaluation", "Queryin
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Tracking", "Querying\Tracking\Tracking.csproj", "{CCD901FE-20C8-4DC0-AD9C-8B8333EE277B}"
 EndProject
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "SqlQueries", "Querying\SqlQueries\SqlQueries.csproj", "{63B6747C-470D-4561-A3A2-3C024747BE3B}"
-EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ComplexQuery", "Querying\ComplexQuery\ComplexQuery.csproj", "{AD0BF60E-B46C-4181-BF43-D68801E5D259}"
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Tags", "Querying\Tags\Tags.csproj", "{2343A153-5832-41B9-A1FF-D80D3107A1DA}"
@@ -291,10 +289,6 @@ Global
 		{CCD901FE-20C8-4DC0-AD9C-8B8333EE277B}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{CCD901FE-20C8-4DC0-AD9C-8B8333EE277B}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{CCD901FE-20C8-4DC0-AD9C-8B8333EE277B}.Release|Any CPU.Build.0 = Release|Any CPU
-		{63B6747C-470D-4561-A3A2-3C024747BE3B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{63B6747C-470D-4561-A3A2-3C024747BE3B}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{63B6747C-470D-4561-A3A2-3C024747BE3B}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{63B6747C-470D-4561-A3A2-3C024747BE3B}.Release|Any CPU.Build.0 = Release|Any CPU
 		{AD0BF60E-B46C-4181-BF43-D68801E5D259}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{AD0BF60E-B46C-4181-BF43-D68801E5D259}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{AD0BF60E-B46C-4181-BF43-D68801E5D259}.Release|Any CPU.ActiveCfg = Release|Any CPU
@@ -587,7 +581,6 @@ Global
 		{524AE4A6-A15F-466C-AED3-CDF3209E4394} = {1AD64707-0BE0-48B0-A803-916FF96DCB4F}
 		{AF8B71E6-454F-4B66-98EE-2128B415EC45} = {1AD64707-0BE0-48B0-A803-916FF96DCB4F}
 		{CCD901FE-20C8-4DC0-AD9C-8B8333EE277B} = {1AD64707-0BE0-48B0-A803-916FF96DCB4F}
-		{63B6747C-470D-4561-A3A2-3C024747BE3B} = {1AD64707-0BE0-48B0-A803-916FF96DCB4F}
 		{AD0BF60E-B46C-4181-BF43-D68801E5D259} = {1AD64707-0BE0-48B0-A803-916FF96DCB4F}
 		{2343A153-5832-41B9-A1FF-D80D3107A1DA} = {1AD64707-0BE0-48B0-A803-916FF96DCB4F}
 		{17A82259-1B8A-4199-A564-AC250F51360E} = {1AD64707-0BE0-48B0-A803-916FF96DCB4F}